The demonstration on this page shows a technique that should not be used by undergraduate chemistry laboratory students.
This video shows what happens to sample in a centrifuge while the centrifuge is on, and the result of stopping the centrifuge improperly.
A narrative is included in this video: The centrifuging process allows the solvent to completely settle out. The jarring caused by hand braking destroys the distinct separation between supernatant and solid.
Finding This Movie in the CCA! Collection
Following are links into the CCA! volume or volumes that contain this movie.
CCA! volumes are organized according to topics in chemistry. Some movies are included on more than one volume of CCA! because they can be used to demonstrate more than one topic or idea.
Viewing Chemistry Comes Alive! Video
Chemistry Comes Alive! uses QuickTime and requires QuickTime version 5 or later and the QuickTime plug-in in order to view the video.
You can download the latest version of QuickTime from the Apple Computer, Inc. WWW site.